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Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | As far as determining the exact RPM it starts to charge you could do this:
attach a dwell/tach to the engine and also connect a voltmeter to the battery post of the starter (or any other "hot" spot in the system). Slowly increase engine speed while watching the voltmeter, when you see a slight jump in voltage (like say from 12.5 volts to 13.5 or so) you have your answer. | | |
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